Improvement in quicksilver-pumps



M. P. BOSS.

' Quicksilver Pumps.

Patented Dec. 23,1873.

Vitnessi" UNITED STATES PATENT FFICE.

MARTIN I. BOSS, OF BULLIONVILLE, NEVADA.

IMPROVEMENT IN QUICKSILVER-PUMPS.

Specification forming part of Letters Patent No. 145,718, dated December23, 1873; application filed November 15, 1873.

F0 all whom it may concern:

Be it known that I, MARTIN 1. Boss, of Bullionville, Lincoln county,State of Nevada, have invented a Quicksilver-Pump; and I do herebydeclare the following description and accompanying drawings aresufficient to enable any person skilled in the art or science to whichit most nearly appertains to make and use my said invent-ion withoutfurther invention or experiment.

The object of my invention is to provide a pump which can be employedfor elevating quicksilver, and which will overcome the ditliculty metwith in pumpin this metal, from its great weight and consequent actionin keeping all lifting-valves, of whatever material, open by floatingthem up, and thus preventing the pump from working. By my construction,I

am also enabled to so arrange the different parts that no leakage orwaste of the metal will occur.

Referring to the accompanying drawings for a more complete explanationof my invention, Figure l is a perspective view of my device. Fig. 2 isa sectional elevation.

A is the barrel of my pump, within which the piston B moves, through asuitable stufling-boX, O. D is the induction-pipe, having below it achamber, E, within which the valve F works.

Any suitable form of valve may be employed, being made to open downward;but I prefer to use a ball, which may be of iron, and the chamber Eserves as acage within which it works.

A passage, G, opens from the bottom of the chamber E into thepump-cylinder below the piston. Another passage, H, extends from theopposite side ofthe pump-cylinder, and opens into the chamber I, whichis situated below the passage H. This chamber has also adownwardly-openin g valve, J ,-and ,from below this valve a passage, K,opens into the dischargepipe L. The whole of this mechanism may bebolted by means of lugs M into the bottom of the basin or tray N. Thistray is secured wherever desired by means of bolts, which pass downthrough the nipples or standards 0. These standards are cast with thetray N, and by this means I am enabled to save any quicksilver which mayleak from the pump.

The operation will be as follows: The piston of the pump being drawn up,quicksilver will be drawn into the pump-barrel through the pipe 1),valve F, and chamber E. WVhen the piston is again forced down, the valveF, floating upon the quicksilver, will be immediately closed, and thevalve J will be forced open, thus allowing the quicksilver to escapeinto the passage L. The valve J will also be floated by the quicksilver,and the two valves will thus be kept to their seats.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. The pump A, with its induction and eduction pipes D L, in combinationwith the chambers E I, with their downwardly-opening valves F J, whenthe whole is constructed to operate substantially as and for the purposeherein described.

2. In combination with the pump, constructed as described, the tray N,with its hollow bolt-standards O, substantially as and for the purposeherein described.

In witness whereof I hereunto set my hand and seal.

Witnesses J. M. HANFORD, B. H. HEREFORD.

